Hofmann geodyna 7600 Service Manual
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Hofmann geodyna 7600 Service Manual

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Service Manual

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Summary of Contents for Hofmann geodyna 7600

  • Page 1 7600 Service Manual...
  • Page 2 BLANK PAGE__________________________________________________________________________ SM HOF GEODYNA 7600 Rel.D...

  • Page 3: Table Of Contents

    4.10 CHECK AND REPLACEMENT OF THE IBP BOARD PAG. 26 4.11 CHECK THE VIBRATORY SYSTEM PAG. 27 4.12 REPLACEMENT OF THE ALLOY VIBRATORY SYSTEM PAG. 27 4.13 CHECK AND REPLACEMENT OF TRANSDUCERS ON ALLOY VPM PAG. 28 SM HOF GEODYNA 7600 Rel.D...
  • Page 4 6.3 ENTERING SERVICE “C” CODES AND OPTION PAG. 82 6.4 SAVING SETTINGS FOR MODES OF OPERATION AND CAL. DATA PAG. 83 6.5 USER “C” CODES REFERENCE PAG. 83 6.6 SERVICE “C” CODES REFERENCE PAG. 90 UPDATING GUIDE PAG. 119 SM HOF GEODYNA 7600 Rel.D...
  • Page 5 BLANK PAGE__________________________________________________________________________ SM HOF GEODYNA 7600 Rel.D...

  • Page 6: Chapter 1 Introduction

    The replacement of a complete Vibratory system. Ø A complete loss of the confi guration data. Ø The replacement or reparation of the power clamp device. Ø After power clamp fl ange replacement. Ø Replacement of the transducers. SM HOF GEODYNA 7600 Rel.D...
  • Page 7 Use this calibration tool to calibrate (C82) the sonar sensor. It is required after: Ø Sonar sensor replacement Ø BP box replacement Ø Distance and/or diameter potentiometer/s replacement Ø Vibratory assy replacement. Ø Wheel guard replacement Electronic inclinometer and spirit level SM HOF GEODYNA 7600 Rel.D...

  • Page 8: Important Safety Instruction

    NOT safety glasses. Balancer is for indoor use only. 1.4 ELECTRICAL SAFETY PRECAUTIONS Make sure the balancer is unplugged before disconnecting any wires in preparation for replacing any boards, cables or other items within the unit. SM HOF GEODYNA 7600 Rel.D...

  • Page 9: Chapter 2 Ac/Dc Power Distribution

    The motor also utilizes a ca- pacitor to generate a suffi cient amount of torque during clamping, on wheel clamp machines, acceleration and braking SM HOF GEODYNA 7600 Rel.D...

  • Page 10: Dc Theory Of Operation

    To determine acutal imbalance the signal must be fi ltered. To fi nd wheel imbalance, the transducers signal magnitude and encoder timing are both required. A series of timing marks on the shaft that interrupt light transmitted between two optocouplers generate a DC Square SM HOF GEODYNA 7600 Rel.D...

  • Page 11: Installation Precautions (Floor Level)

    1. Put the level on the vibratory system (Fig.1). The value must be 0° ±1º. 2. Put the level vertically on the fl ange (Fig.2). The value must be in the range 90º± 1 °. Fig.1 Fig.2 SM HOF GEODYNA 7600 Rel.D...

  • Page 12: Introduction

    The IBP board contains a processor and the memory on which is running the Kernel or BK. The Kernel is the group of instructions that allow to the wheel balancer to perform the balancing operations SM HOF GEODYNA 7600 Rel.D...
  • Page 13 X15 Laser stepper motor X14 Laser pointer X4 Wheel guard X2 Stop Button X13 Brake pedal -wheel guard switch, inner rim light X3 Optoencoder and transducers X7 Diameter potentiometer X6 Offset potentiometer X1 Sonar SM HOF GEODYNA 7600 Rel.D...

  • Page 14: Power Entry Module

    The incremental encoder B8 is acquiring rotational travels, direction of rotation and absolute angular position of the main shaft. The vibratory assembly is fastened and supported towards the ground by the cabinet, so that unbalance produces a SM HOF GEODYNA 7600 Rel.D...

  • Page 15: Transducers

    Insert the scriber in the slot of the collar just above the wire and lift off the plug. To pull out the wires, take hold of it at both sides of the collar to avoid warping of the terminals. SM HOF GEODYNA 7600 Rel.D...

  • Page 16: Temperature Sensor

    An intended irregularity in the arrangement of the mirrors is detected with the main shaft rotating at constant speed, serving as absolute reference. On detection of the reference, the position counter is set to zero thus providing absolute angular position of the main shaft. Checking the incremental encoder is via service code C74. SM HOF GEODYNA 7600 Rel.D...

  • Page 17: Encoder Board Of The Power Clamp

    With some variants of the vibratory assembly, the drive motor is used for breaking as well. The drive system consists of the motor fastened to a bracket, secured to the vibratory tubing. The small pulley at the motor, SM HOF GEODYNA 7600 Rel.D...

  • Page 18: Belt Tension

    For this economical and robust brake with well-controlled torque, just the relay K4 had to be added to the drive system. After reaching standstill of the main shaft, motor voltage has to be switched off immediately. With the semiconductor AC controller, this is accomplished easily. SM HOF GEODYNA 7600 Rel.D...

  • Page 19: The Electromagnetic Brake

    The Power Interface section of the IBP provides the following functions: Ø The high voltage brake driver with brake ammeter Ø The AC controller for various motor torque Ø The motor ammeter Inputs for polling the pedal micro switches and the proximity detector. SM HOF GEODYNA 7600 Rel.D...

  • Page 20: Sd Sape (Semi Automatic Parameter Entry)

    The potentiometers plug into the main processor at connection X6 (Distance) and X7 (Diameter). The potentiometers are supplied with 3.3VDC from the Processor Board. As the SAPE is pulled out and up towards the wheel the SM HOF GEODYNA 7600 Rel.D...

  • Page 21: Sonar Wheel Data System

    The present sonar is of digital type and it is equipped by an electronic inclinometer to avoid the using of the wheel guard potentiometer. The Sonar Sensor, old and new, are not reparable and can be replaced separately from the scanner. SM HOF GEODYNA 7600 Rel.D...

  • Page 22: Chapter 4 Service

    " Ø : Big and Medium Phillips screwdriver, scissors, Plastic panel with keypad EAA0408G40A, 5mm allen key. : 30’ Ø Disconnect the power supply from the balancer. Ø Remove the lateral screws from the weight tray. Ø Remove the SAPE gauge from its arm. SM HOF GEODYNA 7600 Rel.D...

  • Page 23: To Access To The Ibp Box

    2. Turning the machine on the 6.3A fuses of the module blow up. 3. Turning the machine on, the machine does not show anything. Before starting with any power entry module replacement, make sure about that the fuses are fi ne or not. SM HOF GEODYNA 7600 Rel.D...
  • Page 24 Ø Turn the machine on and check if it works fi ne. Ø Turn the balancer off. Ø Remove the panel with keypad. Ø Connect the keypad and mount the weight tray. Ø Mount the weight tray. SM HOF GEODYNA 7600 Rel.D...

  • Page 25: Check And Replacement Power Entry Module 6.3A Fuses

    Turn on the balancer and check if it works fi ne. Ø Turn off the balancer. Ø Mount the weight tray. Ø Turn on the balancer and check again if it is still working fi ne. SM HOF GEODYNA 7600 Rel.D...

  • Page 26: Check Of The 5Vdc Power Supply Voltage

    TO CHECK THE POWER SUPPLY SECTION: Ø Check for system messages. After that: Ø Check with C55 for error codes 001032 - 33 - 34 - 35. Ø Check with C110 for error codes 001080 - 81 - 82. SM HOF GEODYNA 7600 Rel.D...

  • Page 27: Check The Vibratory System

    Ø Remove the three plastic plugs from the cabinet to access to the hex vibratory assembly bolts. Ø Using 1/4” drive 6mm hex head remove the six hex bolts to the vibratory. Pay special attention of spacer placement. SM HOF GEODYNA 7600 Rel.D...
  • Page 28 Press the minus key to select channel "AdE 1", transducer B2 in there is connected to, and repeat the above steps to check the rear transducer. TO REPLACE THE TRANSDUCERS: Ø Disconnect the power from the rear of the machine. Ø Remove the weight tray. SM HOF GEODYNA 7600 Rel.D...
  • Page 29 Ø Tighten the M10x1setscrews at 0,40 ± 0,05 Nm (3,5 ± 0,4 lbs-in) shown by red arrow. Ø Fasten the locknut. To prevent the setscrew to turn, hold it with the hexagon wrench 5-mm inserted. SM HOF GEODYNA 7600 Rel.D...
  • Page 30 Ø It is required to perform the following calibration steps: C115, C84, C88 and C90. Ø Check if the machine works fi ne. Ø Turn off the balancer. Ø Mount the spring plates protection. Ø Mount the weight tray. SM HOF GEODYNA 7600 Rel.D...
  • Page 31 NOTE: BE CAREFUL NOT TO LET FOREIGN DEBRIS FALL INSIDE THE TUBE. Ø Install the encoder board. Ø Apply again the plastic protection immediately. Ø Connect Connector X3 onto the Optoencoder. SM HOF GEODYNA 7600 Rel.D...
  • Page 32 TO REPLACE OF THE POWER CLAMP ENCODER BOARD. Ø Disconnect power supply. Ø Remove weight tray. Ø Disconnect the 4 Pin ribbon cable from the optoencoder PCB. Ø Remove the phillip screws holding the encoder board to the bracket. SM HOF GEODYNA 7600 Rel.D...

  • Page 33: Check And Replacement Of The Motor

    Ø Check for system messages with service code C28. Ø Check the power input with C55 Ø Turn off the balancer. Ø Remove the weight tray. Ø Check all connectors and cables for damage. Ø Disconnect the power supply SM HOF GEODYNA 7600 Rel.D...

  • Page 34: Check And Replacement Of The Belt

    Ø Remove from or position the belt over the main shaft pully. Ø Proceed with the installation, mount the motor and adjust the tension of the belt. Ø Connect the power to the machine Ø Turn on the machine SM HOF GEODYNA 7600 Rel.D...

  • Page 35: Replacement Of Mechanical Brake Boawden Cable

    Remove the two 5mm bolts holding the pedal to the frame. Ø Pull out the pedal assy with the Bowden cable from the cabinet. Ø Dismount the screws to separate the pedal from the pedal bracket. Ø Pull out the Bowden cable from the pedal SM HOF GEODYNA 7600 Rel.D...

  • Page 36: Replacement Of Shaft Brake Band

    2. The brake pads touch the motor pulley during the balancing cycle. Ø Disconnect power supply from the machine. Ø Remove weight tray. Ø Using 10mm wrench remove the two nuts. Ø With 13mm wrench remove the brake bands from the support. SM HOF GEODYNA 7600 Rel.D...

  • Page 37: Check And Replacement Of The Power Clamp Nut And Tie Rod

    Diconnect the power supply from the machine. Ø Remove the weight tray. Ø Unscrew the 2 screws that secure the fl ange to the vibratory system. Ø Turn the ring to match its holes with screws head SM HOF GEODYNA 7600 Rel.D...
  • Page 38 Check if the tie rod and its guide on the vibratory system are fi ne. If the tie rod is worn out, replace the power clamp nut kit. If the guides inside of the vibratory system are worn out, replace the complete vibratory system. SM HOF GEODYNA 7600 Rel.D...

  • Page 39: Check And Replacement Of The Electromagnetic Brake

    TO REPLACE THE ELECTROMAGNETIC BRAKE Ø Remove the power clamp nut. Ø Rmove the drive pulley optoencoder and the belt. Ø Disconnect the electromagnetic wires from the connector X43 of the IBP2. SM HOF GEODYNA 7600 Rel.D...
  • Page 40 Using a 2.5mm hex key securely tighten each set screw. This will push the pulley sheave to the right while the collar tightens securely against the C-Clip and will create a gap between the collar and the pulley sheave. SM HOF GEODYNA 7600 Rel.D...

  • Page 41: Check And Replacement Electric/Clamping Pedal Switch

    Ø Cut the wires of the defective switch and connect them to those ones of the new switch. Ø Remove the wires of the defective switch from the connector X13 Ø Fit the new switch on the pedal bracket and secure it with a torque wrench at 0.5Nm / 4,4 lbs-in) SM HOF GEODYNA 7600 Rel.D...

  • Page 42: Check And Replacement Of Distance Potentiometer

    4. Balancer shows weight chasing. TO CHECK THE POTENTIOMETER Ø Check with service code C75, C80 and C92 TO REPLACE THE POTENTIOMETER Ø Disconnect the power from the rear of the machine. Ø Remove the weight tray. SM HOF GEODYNA 7600 Rel.D...
  • Page 43 Remove the potentiometer from the back of the plastic frame. Ø Install 10K potentiometer onto bracket and tighten 13mm nut. Ø Make sure to insert the antirotational pin into the hole on the rakcket. Ø Secure the potentiometer with the nut. SM HOF GEODYNA 7600 Rel.D...

  • Page 44: Check And Replacement Of Diameter Potentiometer

    Remove the 10mm nut holding the SAPE wheel to the mounting bracket and slide the cog wheel off of the potetiometer shaft. Ø Remove the conical bushing. Ø Remove the 13mm nut holding the potentiometer to the frame. SM HOF GEODYNA 7600 Rel.D...

  • Page 45: Laser Pointer Check And Replacement

    Remove the weight tray of the balancer. Ø Disconnect the laser cables from the weight laser board. Ø Remove the laser plastic cover. Ø Remove the two screws that secure the laser assembly to the VPM. SM HOF GEODYNA 7600 Rel.D...

  • Page 46: Check And Replacement Hood Switch

    Ø Select C code C56 and make sure that the switch is working properly. Ø Make sure thet the switch must close the circuit when the wheel guard has an angle among 14° to 12°. SM HOF GEODYNA 7600 Rel.D...

  • Page 47: Wheel Guard Adjustment

    The inclination must be 15° +/- 1° Ø If necessary correct the inclination adjusting the bumper inside of the wheel guard pipe assembly. Ø Calibrate the sonar with C82 SM HOF GEODYNA 7600 Rel.D...

  • Page 48: Gas Spring: Check And Replacement

    Ø Apply the weight of 0,5Kg / 1lbs small cone EAM0005D23A: the cover wheel has not to fall off (otherwise it means that the gas spring is discharged. SM HOF GEODYNA 7600 Rel.D...

  • Page 49: Sonar Sensor: Check And Replacement

    If they are stable complete C82 and save with C90, where available. 3. If the rim data entry ARE CORRECT perform C81 and save with C90, where available. 3.1 Repeat steps a and b of point 2.1. SM HOF GEODYNA 7600 Rel.D...

  • Page 50: Touch Screen: Check And Replacement

    Connect all cables to the monitor. Ø Turn the machine on: the monitor will go automatically in calibration screen. Ø Calibrate following C130. Turn the machine off and on again. Ø Ø Check if the balancer works fi ne. SM HOF GEODYNA 7600 Rel.D...

  • Page 51: Chapter 5 Trouble Shooting

    Once the down loading is completed, the machine will start beeping constantly. IMPORTANT! PLEASE DO NOT TURN OFF THE BALANCER BEFORE IT WILL START TO BEEP CONSTANTLY BECAUSE THE SOFTWARE UPDATE PROCESS WILL BE INTERRUPTED AND, TURNING IT ON, THE SCREEN WILL NOT SHOW ANYTHING. SM HOF GEODYNA 7600 Rel.D...

  • Page 52: In The Field Reprogramming Of Balancer

    ATTENTION! This is a calibration function; interrupt this function after the test in STEP 1 with the STOP or ESC key. • - Check Voltages for right SAPE ATTENTION! This is a calibration function; interrupt this function after the test in STEP 1 with the RETURN key • - Check Sonar sensor SM HOF GEODYNA 7600 Rel.D...

  • Page 53: Selftest During Startup

    Check the wheel guard cable fi tting to its connector. Actions to do Replace the wheel guard switch. Secure the wheel guard switch. Adjust and secure the wheel guard switch cam. Replace the IBP box Panel. SM HOF GEODYNA 7600 Rel.D...
  • Page 54 Optimisation was carried out incorrectly Code C28 Complaint During the Optimization / Minimization E9 comes up Root cause The Optimization / Minimization operation has been carried out incorrectly. Service Code Actions to do Repeat the Optimization / Minimization operation SM HOF GEODYNA 7600 Rel.D...
  • Page 55 C54, C60, C110, C115, C84, C88, C90 Check the wing nut. Check the belt Check the capacitor, Actions to do Check the motor wiring. Check the motor pulley. Check the motor. Checl the IBP box. SM HOF GEODYNA 7600 Rel.D...
  • Page 56 Stop button contact Root cause Pedal switch closed Bad touch screen communication Service Code Release the Stop button or the switch. Actions to do Replace the Stop button or the switch. Replace the touch screen USB cable SM HOF GEODYNA 7600 Rel.D...
  • Page 57 C74, C85, C86, C80, C81, C82, C115, C84, C88, C122, C90 Make sure about the proper communication with C74 Actions to do Perform the C85 if Optoencoder has been replaced Perform C86 if IBP box has been replaced. SM HOF GEODYNA 7600 Rel.D...
  • Page 58 Cable from IBP board to Laser motor is disconnected, missing or damaged. Defective Laser kit. Service Code C122, C123, C90 Check the proper fi tting of the laser motor cable. Actions to do Check and replace the laser kit: adjust with C123 and calibrate with C122 SM HOF GEODYNA 7600 Rel.D...
  • Page 59 Check calibration Code C28 Complaint Turning the balancer on the screen shows E901. Root cause Machine was not calibrated Service Code C80, C81, C115, C84, C88, C90 Actions to do Perform the calibration as above SM HOF GEODYNA 7600 Rel.D...

  • Page 60: H" Error Codes

    Index the correct position for this correction plane prior to fi tting the adhesive weight. Plane Separation Too Small Move gauge arm back into the home position. Then bring it once again to the application point for weight placement encreasing the separation plane among inner and outer plane. SM HOF GEODYNA 7600 Rel.D...
  • Page 61 Make sure that the shaft with clamped wheel can rotate freely: Repeat the measuring run. Measuring Speed Fluctuation Check if the brake is released. If the problem still persists: Make sure that the shaft with clamped wheel can rotate freely: Repeat the measuring run SM HOF GEODYNA 7600 Rel.D...
  • Page 62 Turn off and back on the machine. If the problem still persists: Load the software. If the problem still persists: Replace the IBP2 box. If the problem still persists: Call Snap On C Codes C74, C75, C86, C115, C84, C88, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 63 If the problem still persists: Check the main shaft Optoencoder If the problem still persists: Check the main shaft polygonal ring. If the problem still persists: Call Snap On C codes C74, C75, C85, C86, C115, C84, C88, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 64 Check the bearings. If the problem still persists: Check the transducers If the problem still persists: Check if the vibratory assu is well secured to the cabinet. If the problem still persists: Call Snap On C Codes SM HOF GEODYNA 7600 Rel.D...
  • Page 65 Check the main power supply cord and plug. If the problem still persists: Check the main switch. If the problem still persists: Check power supply cable and connectors inside of the machine. If the problem still persists: Call Snap On C Codes SM HOF GEODYNA 7600 Rel.D...
  • Page 66 If the problem still persists: Check the Distance potentiometer If the problem still persists: Check the IBP box. If the problem still persists: Call Snap On C Codes C80, C81, C92, C115, C84, C88, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 67 If the problem still persists: Call Snap On C Codes C64, C115, C84, C88, C90 0X001051 SIDE CAL USER Perform the User calibration with weight in the correct side. If the problem still persists: Call Snap On C Codes SM HOF GEODYNA 7600 Rel.D...
  • Page 68 If the problem still persists: Check the transducers adjustment. If the problem still persists: Check the IBP box. If the problem still persists: Call Snap On C Codes C66, C75, C103, C104, C115, C84, C88, C90. SM HOF GEODYNA 7600 Rel.D...
  • Page 69 If the problem still persists: Check the transducers. If the problem still persists: Check the IBP box. If the problem still persists: Call Snap On C Codes C66, C75, C103, C104, C115, C84, C88, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 70 If the problem still persists: Check the main shaft Optoencoder. If the problem still persists: Check the IBP box If the problem still persists: Call Snap On C Codes C74, C54, C115, C84, C88, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 71 If the problem still persists: Check the main shaft Optoencoder. If the problem still persists: Check the IBP box If the problem still persists: Call Snap On C Codes C60, C74, C54, C115, C84, C88, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 72 If the problem still persists: Check the main shaft Optoencoder. If the problem still persists: Check the IBP box If the problem still persists: Call Snap On C Codes C56, C74, C98, C115, C84, C88, C122, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 73 If the problem still persists: Check the main shaft Optoencoder. If the problem still persists: Check the IBP box If the problem still persists: Call Snap On C Codes C56, C74, C97, C98, C115, C84, C88, C122, C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 74 Call Snap On C Codes C56, C74, C97, C98, C115, C84, C88, C122, C90 0X00100 WATCHDOG Check the IBP box If the problem still persists: Call Snap On C Codes C86, C115, C84, C88, C90 SM HOF GEODYNA 7600 Rel.D...

  • Page 75: X" Error Codes

    This diagnostic can occur after a measuring run, if the incremental encoder of EXPLANATION the power clamp is not able to detect the reference mark (810F17). ACTION Check main shaft and power clamp encoders. May need replacement. C CODE C54, C74 SM HOF GEODYNA 7600 Rel.D...
  • Page 76 Use C64 to check the outputs ACTION of transducers. In most case should re-torque the transducers. Or transducer(s) is bad, need replace the transducer(s). C CODE C64, C115, C84, C88 SM HOF GEODYNA 7600 Rel.D...
  • Page 77 The 5 VDC source is used to power electronics circuits. If it is too low, the EXPLANATION electronics will fail to properly operate Check the DC voltage. Check the connectors, plugs and wires. If necessary ACTION replace the IBP box C CODE C55, C110 SM HOF GEODYNA 7600 Rel.D...
  • Page 78 Check the cable and connector on the encoder board. Go to C74, C75. Cle- ACTION an the encoder band. If the balancer will spin, balance a wheel and stop, the encoder is ok. C CODE C74, C75 SM HOF GEODYNA 7600 Rel.D...

  • Page 79: Beep Codes

    Encoder board of main shaft External AD converter S S P1 Internal AD converter Temperature sensor measurement Data conditioning Extensions, based on Pos: S S S P1 Keyboard/display, SAPE, brake, motor 44, 45, 46, 47, 48 Drive system SM HOF GEODYNA 7600 Rel.D...

  • Page 80: C- Beeps Of The Module/Object

    One short beep half a second and a one second 5 short beeps 3 seconds pause NEXT cycle ... pause after pause Ø Error during initialisation of the persistent objects. e.g. the Optoencoder board is not connected. SM HOF GEODYNA 7600 Rel.D...

  • Page 81: Chapter 6 Service Codes

    Copy content of serial EEPROM (EEP) from micro-controller EEP to incremental encoder EEP. Copy content of serial EEPROM (EEP) from incremental encoder EEP to micro-controller EEP. Calibration of the 12 o’clock position for fi tting position of weights Saving the adjustments data in the PO’s SM HOF GEODYNA 7600 Rel.D...

  • Page 82: Entering Service "C" Codes And Option

    Special function: Press the "Further information" key to activate extra functionality on some C codes (e.g. C75). Press “Reset” key to reset data (e.g. C28) Press " CONFIRMATION / CONTINUES" to switch over to an alternative reading (e.g. C, 12, C74). SM HOF GEODYNA 7600 Rel.D...

  • Page 83: User C Codes Reference

    Threshold for unbalance suppression in grams/ounces 3.5 -20 g according to C3 0.12 - 0.71 oz Position brake and indexing Start of measurement by closing wheel guard Actuation direction of pedal for clamping/releasing Lifting Comments: None SM HOF GEODYNA 7600 Rel.D...
  • Page 84 The chosen mode of operation can be transferred to the permanent memory. Comments: None Compensation of adaptor unbalance Options: None Special function: None Description: Set code C4, close the wheel guard and start an extended measuring run by lowering the wheel SM HOF GEODYNA 7600 Rel.D...
  • Page 85 C8. Therefore the rim width must be known for a correct assessment of the balance quality (and for recommendation of optimisation). If OK is displayed the unbalance readings will always be 0, irrespective of the selected balancing mode. If the SM HOF GEODYNA 7600 Rel.D...
  • Page 86 Indexing of the wheel for the left-hand correction plane is initiated by pressing the START key while the wheel guard is SM HOF GEODYNA 7600 Rel.D...
  • Page 87 Tighten the calibration weight to the adaptor fl ange and press the START key to initiate the second Remove calibration weight and place in storage location. Press "ESC" key to escape the C code. Comments: None SM HOF GEODYNA 7600 Rel.D...
  • Page 88 Options: Power clamp device enabled Power clamp device disabled. Special function: None Description: Set the function to 1 to disable the power clamp after the clamping of the fl ange for rim without center bore. SM HOF GEODYNA 7600 Rel.D...
  • Page 89 FR - French ES - Spanish PT - Portuguese ZH – Chinese KO – Korean JA – Japanese RU – Russian Press OK to confi rm the language choosen Special function: None Description: Comments: Save with C10 SM HOF GEODYNA 7600 Rel.D...

  • Page 90: Service C Codes Reference

    Display of internal error code (6 digits). Use the "CONTINUE" key to proceed to the next error message (reading Err1 -Err10). Error Number Number of accidents If no error occurred, "---" is read out. SM HOF GEODYNA 7600 Rel.D...
  • Page 91 Motorized Wheel Balancer Machine - Comments: This feature is available from BK Rev.2.0 or higher. The selected mode of operation disappear when machine is turned off. To transfer the selection to the permanent memory perform a C90 code. SM HOF GEODYNA 7600 Rel.D...
  • Page 92 With digital machines the minimum and maximum values are read out upon operation of the Special function key, the Option key is used to proceed to the next value. Comments: More detailed information about step 8 : SM HOF GEODYNA 7600 Rel.D...
  • Page 93 This test function can be used to determine the angle at which the wheel guard switch trips. SM HOF GEODYNA 7600 Rel.D...
  • Page 94 Indication of the correction factors for user calibration Options: None Special function: None Description: The correction factors determined during user calibration are read out in form of 6 digits. 1st Read out: Rear transducer. 2nd Read out: Front transducer. Comments: None SM HOF GEODYNA 7600 Rel.D...
  • Page 95 Front transducer: 25-135 Comments: The shown values are those ones calculated in the latest calibration performed, not those saved from the latest C90. Display calibration values as measured with C code 83/115 (virtual dimensions) Options: None SM HOF GEODYNA 7600 Rel.D...
  • Page 96 Reading on screen machine must be: 1. Field : Rear transducer 178-182 2. Field : Front transducer 358-002Reading with screen machine: Comments: The shown values are those calculated in the latest calibration performed, not those saved from the latest C90. SM HOF GEODYNA 7600 Rel.D...
  • Page 97 B before A identifi ed (foreward rotation) zero reference identifi ed in forward rotation zero reference identifi ed in backward rotation synchronising error in forward rotation synchronising error in backward rotation SM HOF GEODYNA 7600 Rel.D...
  • Page 98 External AD converter (rear transducer) AdE 2 External AD converter (front transducer) * via multiplexer on the power interface Free: 0.0V will be displayed Reading with SCREEN machine: 1. Field 2. Field 3. Field AD input Channel Voltage. SM HOF GEODYNA 7600 Rel.D...
  • Page 99 Place the gauge arm to the fl ange edge and adjust the diameter potentiometers mechanically: the voltage of the diameter potentiometer is indicated in the left 3-digit fi eld. Place the arm to fl ange edge. The reading must 2.60 – 2.63V SM HOF GEODYNA 7600 Rel.D...
  • Page 100 Move gauge arm to calibration position 2. Press acknowledge key to confi rm step 2. Gauge arm extended to max extension Step 3: Move gauge head to calibration position 3. Press acknowledge key to confi rm step 3. Position 1 of calibration template, or head of calibration weight SM HOF GEODYNA 7600 Rel.D...
  • Page 101 Before performing the C82, it is mandatory to perform C80 and C81. 1. Mount the calibration rotor with the bracket downward at 6 o’clock. 2. Position the wings of the nut horizontally in order to avoid any interference with the sonar. SM HOF GEODYNA 7600 Rel.D...
  • Page 102 Reapeat the acquiring procedure 3 times to make sure that the value acquired will be stable. Press “OK” to confi rm the value. Comments: Perform C90 to store the calibration SM HOF GEODYNA 7600 Rel.D...
  • Page 103 In step 6 the ambient transducer temperature will be read out for 1 second. Mount the calibration tool or the wheel on the balancer shaft: Set the calibration tool or wheel data. Step 1: Press the “START” button to begin the measuring run. SM HOF GEODYNA 7600 Rel.D...
  • Page 104 Remove the 100 gram calibration weight and insert it into the right hand plane of the Pruefrotor / wheel. Press the “START” key to begin the measuring run. Step 5: . Step Number 5 has not been programmed. Press the “ENTER” key to advance to the procedure. SM HOF GEODYNA 7600 Rel.D...
  • Page 105 . Insert the calibration weight that is supplied with the balancer on the left side of the backing plate. Press the “START” button to begin a measuring run. Comments: Complete this calibration with C84, C88 and C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 106 180 degrees, the tie rod must be displaced by another 4 mm in the clamping operation prior to the second measuring run. MPOTANT! DO NOT USE CONES FROM OTHER BALANCERS MODELS SM HOF GEODYNA 7600 Rel.D...
  • Page 107 To make sure the content is not overwritten by mistake, fi rst set display from 0 to 1 by using the option selection. Then the copying operation is started by pressing the Acknowledgment key. Once copying has been completed, the machine is started again automatically. Comments: See C85 SM HOF GEODYNA 7600 Rel.D...
  • Page 108 fi nd the correct position. Press the “ENTER” key to save the data. CALIBRATION COMPLETE Comments: Save the calibration data in the the permanent memory using code C90. SM HOF GEODYNA 7600 Rel.D...
  • Page 109 If this test fails (no 23F) please check • the cabling of the Optoencoder – micro-controller and • the cabling Optoencoder power clamp - Optoencoder main shaft • the connectors of the cables • clean the incremental encoder tape SM HOF GEODYNA 7600 Rel.D...
  • Page 110 Description: Indication of the unbalance transducer RC time constants. A “1” in the left and the right display will be indicated, if both transducers are OK. Otherwise an error code will be displayed. Comments: None SM HOF GEODYNA 7600 Rel.D...
  • Page 111 NOTE: THIS TEST REQUIRES THE USE OF PRUEFROTOR. ALSO CHECK THE VCC VOLTAGE “C110” IF NECESSARY BEFORE ANY CALIBRATION IS DONE. Mount the calibration tool on the balancer shaft . Set the calibration tool data. SM HOF GEODYNA 7600 Rel.D...
  • Page 112 Press the “START” button to begin the measuring run. Step 4: Remove the 100 gram calibration weight and insert it into the right hand plane of the Pruefrotor. Press the “START” key to begin the measuring run. SM HOF GEODYNA 7600 Rel.D...
  • Page 113 Step 6: The ambient transducer temperature is displayed for 1 second. Step 7: Remove the 100 gram weight, lower the hood and press the “START” button to begin a measuring run. SM HOF GEODYNA 7600 Rel.D...
  • Page 114 Description: On selection the current status is displayed (0 / 1). Select 0: Disable laser pointer. Select 1: Enable laser pointer. Comments : The setting can be stored to persistent memory by performing code C90. SM HOF GEODYNA 7600 Rel.D...
  • Page 115 Press OK: The laser pointer will shot the dot to the inner rim edge. Press the left/right arrow button to adjust the laser dot to the correct position. IMPORTANT! The laser dot must be adjusted in front of the weight SM HOF GEODYNA 7600 Rel.D...
  • Page 116 A numeric sequence of 4 numbers that have the following meaning is displayed. 0 : off (fail) 1 : on (ok) Once selected C123, the following display is displayed Main board power Motor stream Laser stream Zero mark SM HOF GEODYNA 7600 Rel.D...
  • Page 117 Select 1: Touch screen First Step Second Step Third Step At the end of the calibration process the machine will reboot itself. Comments: The setting must be stored to persistent memory by performing code C90 SM HOF GEODYNA 7600 Rel.D...
  • Page 118 SM HOF GEODYNA 7600 Rel.D...

  • Page 119: Updating Guide

    The information and specifi cations in this manual are based on the latest information available at the time of publication. We reserve the right to change the specifi cations at any time without notice. SM HOF GEODYNA 7600 Rel.D...
  • Page 120 BLANK PAGE__________________________________________________________________________ SM HOF GEODYNA 7600 Rel.D...
  • Page 121 All manufacturing, use, reproduction, and sales rights are reserved by Snap-on Tools Company and the information no warranty with regard to present documentation. Hofmann shall not be liable for errors contained here- in or for incidental consequential damages in connection with furnishings, performance, or use of this material.

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